Jason Thompson led Lenape High to a state basketball title. A few years later he took Rider University to a share of the MAAC title, and who knows what else he would have done if three of his teammates didn’t get hurt in the MAAC tournament.

Now after four years in the NBA, after being a lottery pick of the Sacramento Kings, Thompson is still waiting to win at the professional level.

As the NBA playoffs continue, Thompson continues to wait for his chance at the postseason. Instead of just watching his new friends and peers, he’d like the opportunity to be watched.

“It’s definitely frustrating,’’ Thompson said the other night just before three different games were about to start. “I want to still be playing. I would love to be in the playoffs.’’

In Thompson’s four years in the league, the downtrodden Kings are 88-224 and have finished in last place in the Pacific Division each year. That’s not close to the playoffs.

You want futility, the Kings have it — their last NBA title came in 1951 when they were still in Rochester and named the Royals. Three moves, to Cincinnati, Kansas City and Sacramento, and a name change haven’t helped.

While it was 10 years ago, that the Kings lost to the Lakers in a memorable Western Conference Final, it’s been six years since they have even been back to the playoffs.

“I watch Spencer (Hawes) and we played together and now he’s in the playoffs for the first time,’’ Thompson, who was in attendance for the Sixers’ and Hawes’ Game 3 win over Chicago, said. “Things can happen.’’

Thompson is a restricted free agent this offseason. The Kings have to make him a qualifying offer of $4.1 million to retain his rights, but he can also entertain outside offers. If he gets one, Sacramento can match it and keep him.

Jim McIsaac/NewsdayJeremy Lin of the Knicks drives against Jason Thompson of the Sacramento Kings.

Last year, because of reduced minutes, Thompson averaged 9.1 points and 6.9 rebounds per game, slightly under his career averages of 10.5 and 7.4.

Those numbers aren’t bad, and there are teams who would like to see what the 6-11 Thompson can do in different surroundings. Inside NBA circles, the Atlanta Hawks are one team that has been connected to him.

“I’m not sure how it’s going to work out,’’ Thompson said. “I’m restricted, so we’ll just see how it goes.’’

You listen to Thompson and you believe he’d really like to stay with the Kings and have it work out there.

Is that realistic for a team with four straight last-place finishes? Who knows? The Kings will add another lottery pick to the roster this draft.

“I just don’t want to be in a bad situation,’’ he said. “And I really do believe we have the talent to be a playoff team. As far as the city and fans go, I really like it, that’s not a problem at all. It’s great. We’re the only pro team in town; the fans are good to us. The thing is I just want to win.’’

That’s all Thompson ever wanted to do. From the time his basketball career started as a guard at Lenape, to his early days as a skinny defensive player at Rider, to his senior year in college when he was the best mid-level player in the country.

Now four losing seasons in the NBA has worn on him for sure. Still, he has hope for the Kings or for his next destination.

“It’s tough,’’ he said. “But I never put my head down. I have to stay confident and I do. I hope it’s all going to work out.’’